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          <h1 class="post-title" itemprop="name headline">wireshark流量分析</h1>
        

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        <h1 id="wireshark流量分析"><a href="#wireshark流量分析" class="headerlink" title="wireshark流量分析"></a>wireshark流量分析</h1><h2 id="一、-webshell"><a href="#一、-webshell" class="headerlink" title="一、 webshell"></a>一、 webshell</h2><ol>
<li><p>流量载入wireshark</p>
</li>
<li><p>文件-&gt;导出对象-&gt;HTTP</p>
</li>
<li><p>分析流量，按文件名排序</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/1.PNG" alt></p>
</li>
</ol>
<p>可以看到用户对网站的同一资源进行了大量多次的访问，流量异常。注意192.168.1.108地址</p>
<ol start="4">
<li><p>对192.168.1.108追踪流</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/2.PNG" alt></p>
</li>
</ol>
<p>发现用户已上传conf1g.php并在对网站进行爆破。</p>
<ol start="5">
<li><p>直接来到192.168.1.108的最后一次会话最后一个包，发现回包为jpeg图片，图片末尾发现flag</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/3.PNG" alt></p>
</li>
<li><p>不过得到flag不是目的，继续分析，查看倒数第二个包，发现依旧无异常，依旧含有flag，查看倒数第三个包</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/4.PNG" alt></p>
<p>发现为上传的木马源代码</p>
</li>
<li><p>继续向上查找</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/5.PNG" alt></p>
<p>发现爆破成功，密码为==youxiu==，并且设置了cookie loginpass</p>
</li>
<li><p>至此流量分析基本完成，攻击者事先上传webshell木马conf1g.php，接着爆破网站登陆密码，爆破成功后跳转到上传webshell页面</p>
</li>
</ol>
<h2 id="二-、浏览器端emall流量分析"><a href="#二-、浏览器端emall流量分析" class="headerlink" title="二 、浏览器端emall流量分析"></a>二 、浏览器端emall流量分析</h2><ol>
<li><p>依旧载入文件，导出对象html,对一些特殊页面进行查看，<em>（尽量先不去看一些图片，js之类）</em></p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/6.PNG" alt></p>
</li>
<li><p>搜寻发现仅几个页面有些特别</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/7.PNG" alt></p>
</li>
<li><p>最终查看这个页面，追踪流</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/8.PNG" alt></p>
<p>发现一个html页面</p>
<p>可直接看到里面的key，也可以另存为html</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/9.PNG" alt></p>
</li>
</ol>
<h2 id="三、分析SSL流量（client2）"><a href="#三、分析SSL流量（client2）" class="headerlink" title="三、分析SSL流量（client2）"></a>三、分析SSL流量（client2）</h2><ol>
<li><p>文件打开后流量不是很多，追踪tcp流，乱码</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/11.PNG" alt></p>
</li>
<li><p>配置ssl keylist——–编辑-首选项-protocols-ssl</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/ssl配置.PNG" alt></p>
</li>
<li><p>追踪ssl流</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/12.PNG" alt></p>
</li>
</ol>
<h2 id="四、分析ftp流量（final）"><a href="#四、分析ftp流量（final）" class="headerlink" title="四、分析ftp流量（final）"></a>四、分析ftp流量（final）</h2><ol>
<li><p>载入流量，发现ftp流量，先过滤</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/13.PNG" alt></p>
</li>
<li><p>ftp在392分组时传输完成，因此查看392之前分组，分析传输的数据包</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/14.PNG" alt></p>
</li>
<li><p>这里有许多相同的ftp流量包，先查看其中一个</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/15.PNG" alt="明显是RAR压缩包"></p>
</li>
<li><p>RAR压缩包，将<strong>原始数据</strong>另存为rar，试着解压发现需要密码</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/16.PNG" alt></p>
</li>
<li><p>没有其他提示，只能在流量中寻找，这里用</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">tcp contains pass</span><br></pre></td></tr></table></figure>
<p>命令寻找password</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/17.PNG" alt></p>
<p>追踪流</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/18.PNG" alt></p>
</li>
<li><p>尝试base64解码发现为乱码，其实解码没有问题，只是工具不支持中文显示，大厨将解码结果另存为</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/19.PNG" alt></p>
</li>
<li><p>中文密码，解压rar文件，得到文件66666666666，edit with nodepad++</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/20.PNG" alt></p>
</li>
<li><p>极有可能是png文件，修复文件头。</p>
<p><a href="https://blog.csdn.net/persist213/article/details/79374914" target="_blank" rel="noopener">附png图片文件头</a></p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/21.PNG" alt></p>
</li>
</ol>
<h2 id="五、分析ICMP流量"><a href="#五、分析ICMP流量" class="headerlink" title="五、分析ICMP流量"></a>五、分析ICMP流量</h2><p>题目标题为ICMP。</p>
<p>直接过滤ICMP流量。</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-03_20-50-05.png" alt></p>
<p>观察普通的ICMP流量会发现data字段数据如下：</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-03_20-53-30.png" alt></p>
<p>在观察本题icmp流量data字段如下;</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-03_20-54-49.png" alt></p>
<p>明显被修改。猜测为flag的f开头。</p>
<p>果然：</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-03_20-56-31.png" alt></p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-03_20-57-07.png" alt></p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-03_20-57-40.png" alt></p>
<p>一下不赘述。逐一向下分析，取首字母可的flag。</p>
<p>ps：这里的data字段的修改不影响ICMP协议功能。</p>
<p>六、DNS流量分析</p>
<p>载入流量发现有很多DNS流量，过滤DNS流量，看到一些奇怪的DNS查询：</p>
<p>猜测前面的字符串为MD5或16进制</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-04_09-49-53.png" alt></p>
<p>根据特征来过滤该类流量：</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-04_09-52-19.png" alt></p>
<p>按顺序排列：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line">5647687063794270 </span><br><span class="line">6379426849484e6c</span><br><span class="line">59334a6c64434230</span><br><span class="line">636d467563323170</span><br><span class="line">6448526c5a434230</span><br><span class="line">61484a766457646f</span><br><span class="line">4947527563794278</span><br><span class="line">6457567965534136</span><br><span class="line">4b53424754454648</span><br><span class="line">4c555a554e44646a</span><br><span class="line">545667794e6e4258</span><br><span class="line">65555a5453545a53</span><br><span class="line">5546646855334931</span><br><span class="line">57564a330a</span><br></pre></td></tr></table></figure>
<p>hex解码后base64解码：</p>
<p><img src="https://raw.githubusercontent.com/srat1999/Pictures/master/img/Snipaste_2019-08-04_10-18-17.png" alt></p>

      
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